Fix typo in book

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nicolaiunrein 2020-05-21 18:45:24 +02:00 committed by GitHub
parent 10dc8d9a2f
commit c0ee41c8be

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@ -2,6 +2,6 @@
A GraphQL extension object can receive events in various stages of a query's execution, and you can collect various kinds of data to be returned in the query results.
You can use `async_graphql::Extension` to define an extension object, and your application much call `Schema::extension` when your `Schema` is created.
You can use `async_graphql::Extension` to define an extension object, and your application must call `Schema::extension` when your `Schema` is created.
You can refer to [Apollo Tracing](https://github.com/async-graphql/async-graphql/blob/master/src/extensions/tracing.rs) to implement your own extension types.
You can refer to [Apollo Tracing](https://github.com/async-graphql/async-graphql/blob/master/src/extensions/tracing.rs) to implement your own extension types.